Shutter



A ril28, 1931. r MATTQON I 1,802,953

SHUTTER Filed April 26, 1928 ,lllllil Patented Apr. 28, 1931 UNHTEESTATES ROY E. MAT'IOON, OF SUPERIOR,:WIS;CONSIN SHUTTER Applicationfiled April 26,

This invention relates to shutters and has special reference to a novelform of shutter for a radiator cover for automobiles, the principalobject being to provide a more eflicient and practical shutter thanheretofore known.

Another object is to provide simple means whereby portions of theshutter may be opened while the remainder is closed, and

the shutter is so designed that that portion opened initially is mostdesirable in the op eration of the engine during cold weather to affordthe necessary cooling with the minimum danger of freezing.

Other objects and advantages of the invention will appear in the furtherdescription thereof.

Referring now to the accompanying drawing, forming part of thisapplication, and wherein like reference characters indicate like parts:

Figure 1 is a front elevation of an automobile radiator as it wouldappear with one of the improved shutters applied thereto;

Figure 2 is a detailed fragmental view of the shutter operatingmechanism partly in section and partly in elevation; and

Figure 3 is a fragmental view of the shutter operating mechanism.

1 represents the radiator front having a substantially rectangularlyshaped opening therein, the closure for which comprised alternatelydisposed V-shaped members or vanes 2, they each being pivotally mountedat either end in any desired manner as for example by the gudgeons orpintles 3, one upon the uppermost end of each vane, terminating in theform of a crank arm 4, with the extreme end 5 of each extending withinits respective slot 6 formed within the tubular roller 7. As is obviousthis roller may be located transverse the upper end of the vanes oracross the lower end thereof, whichever may be the more convenient, andj ournalled upon the end gudgeons 8 in any desired manner.

Preferably adjacent one of these gud eons 8 is formed as at 9 acircumferential groove for the reception of the operating rope or line10, which may be wound thereabouts as to prevent slipping, or in lieuthereof a 1928. Serial No. 272,989.

sprocket wheel and chain may be employed for the rotation of the shaftor roller 7. To one end of the operating line or rope 10 is attached acontractile helical spring 11 for normally holding the roller 7 againstbeing rotated for the opened operation of the vanes, so that the latternormally remain in closed position, and the opposite end of the line 10may lead to any convenient place within reach of'the operator of theautomobile so 0 that by pulling same he may open the shutter to anyextent desired; this being controlled as for example by a notched leveror operating rod indicated at 12 engageable' with the fixed stop 13 onthe dash board of the automobile.

To prevent rattling of the vanes of the shutter I install-a spiralspring indicated at 14 within the tubular roller 7 and intermediate ofthe coils of which the'termini 5 of the cranks 4 of the vanes areengaged and normally held against rattling by the spring.

It will be noted that the vanes 2 are as before stated V-shaped, everyalternate one being inverted, and besides being noveland pleasing inappearance as compared with the horizontal shutters now in use, permitof those being widest at their upper ends being opened first so that inthe initial operation of the automobile engine when cold the radiatorwill receive the cooling influence of the air entering same in the upperor hottest portion thereof while the intermediate vanes whose wider endsare at the bottom will remain closed thus keepingthe cold air from thecoldest part of the radiator until such time as it is desirable to admitthe cooling influence of the air to the entire front of the radiator,when a continuance of the rotation of the roller 7 will cause theintermediate vanesto be opened. This action is brought about by theshape of the slots 6 which as clearly illustrated in Figure 3 of thedrawings are formed obliquely in their leading termini for the vanesfirst to be opened and ending in a straight circumferential portion;whereas the shape of the slots for the vanes to be subsequently openedare just oppositely shaped, the termini 5 of the cranks of the latterextending within the circumferential portion of the slots during theinitial operation of the roller and then subsequently being operated bythe oblique portion thereof.

From the above it is apparent that I have 5 devised an efficient form ofshutter and operating mechanism therefor which may be regulated asdesired from a closed to wholly opened position, and the construction ofwhich may be varied somewhat from that of the embodiment hereillustrated without departing from the spirit of theinvention as definedin the following claims.

It is furthermore evident that the simple device for operating the vanesof the shutter may be employed with equal efficiency in the operation ofhorizontally disposed vanes.

Having thus describeddny invention, what I- claim and desire to secureby Letters Patent,

1. A shutter of the class described comprising a plurality of alternateV-shaped and inverted V-shaped vanes.

2. A shutter of the class described comprising a plurality of alternateV-shaped and inverted V-shaped vanes and single means whereby alternatevanes may be simultaneously operated initially and the other alternatevanes subsequently operated.

3. A shutter of the class described com- 0 prising a plurality ofvertically disposed alternate V-shaped and inverted V-shaped vanes andsingle means whereby alternate vanes may be simultaneously operatedinitially and the other alternate vanes subsequently operated.

L- A shutter of the class described comprising a plurality of vanes eachhaving a larger area at one end than at the other" and being alternatelydisposed.

In'testimony whereof I affix my signature.

ROY E. MATTOON.

